Gas-stove



(No Model.)

2 sham-sheet 1. A. S. DINSMORB.

GAS sTov.

Patented June 19, 1888.

Mmmm n u n n u Umm/17mm Witnessf,

fave/71507; yraal l'nenoral G 53%@ tty N. PETERS FlwwLimagnphar.wzminpun, I)A C.

\ 2 Sheets-Sheet 2.

(No Model.)

` A. S. DINSMORE.-

GAS sTovE.

No. 384,683. l Patented June 19, 1888.

N. PETIRS. Pholzrlhognplwr. Washington. D. C.

NrTnn STATES' PATENT OFFICE.

ALFRED S. DiNSMoRE, or BoSToN, MASSACHUSETTS.

GAS-STOVE.

SPECIFICATION forming part of Letters Patent No. 384,683, dated June 19,1888.

Application inea May 23, 1881'.

To @ZZ whom, it may concern:

Be it known that I, ALFRED S. DINSMORE, of Boston, county of Suffolk,State of Massachusetts, have invented an Improvement in GasStoves, ofwhich the following description, in connection with the accompanyingdrawings, is a speciiication, like letters on the drawings representinglike parts.

My invention, relating to gas-stoves, is embodied-in astove of the kindshownin Letters Patent No. 285,311, dated September 18, 1883.

r1`he object of the present invention is to facilitate the manipulationof the parts of the stove or burner and prevent possibility of saidparts being improperly placed with relation to one another, as sometimesoccurs in the construction shown iu the said patent.

The operative parts of the burner are substantially the same as shown inthe patent referred to. The burner proper comprises a tube whichreceives a mixture of air and gas at its lower end, and is Surrounded atits upper end by a perforated Screen or chimney, in which the saidmixture is consumed, and has above the said burner and chimney a cone oriiaring detlector having its apex project down into the chimney over thecenter of the burner.

It is essential that the burner, tube, and

chimney should be removable for the purpose of cleaning, and in theconstruction shown in the patent referred to the cone also has to bedetachable and removable from the framework of the stove, as the burnercan only be removed by'lifting it up through the space normally occupiedby the cone.` From this construction it sometimes happens that the conewill be replaced in the wrong position,or with its apex upward, bypersons who do not understand the principle of operation of the stove.rThis construction also necessitates that any device used above thestove proper-such, for example, as an oven or heating-drumshould bedetachable from the stove proper, in order to afford access to the coneand burner. The present invention consists, partly, in the combinationof a cone fixed or permanently attached to the framework, withthe burnerand support therefor constructed to admit of the said burner beingremoved laterally from 5o beneath the cone.

The invention also consists in various details Serial No. 239,092. (Nomodel.)

of construction of the stove, which will be hereinafter pointed out.

Figure 1 is a front elevation of a heating` stove embodying thisinvention; Fig. 2, a vertical section thereof; Fig. 3, a verticalsection showing a modified construction Fig. et, a plan view of thestove proper, represented in Fig.

3 as seen with the drum le and iiue m m' reg moved; and Fig. 5, a planview of the base 6o portion of the stove with the drum, cone, and burnerremoved.

The operative parts of a stove are supported on a base, a, having aplatform, a', provided with an opening or recess, a?, (see Fig. 5,) to63 receive the lower end of the burner-tube c, which extends downthrough the said opening, as shown in Fig. 2, and rests on afoot-piece,. d, connected by arms d with the platform c.

The burner proper is of substantially the 7o Same construction as shownin the patent before referred to, the tn be c surrounding the gas-jet band being provided at its lower end with inletopenings 2 for the air toenter and mix with the gas, and being provided at its upper end with aforaminous covering or cap,

c', through which the mixed air and gas passes, and above which itburns. The upper end of the tube c is provided with a wide` iiange, e,that supports the perforated chimneyf, which 8o contributes to thecombustion of the gases, as described in the said former patent.

i Instead of supporting the burner by a collar surrounding the upper endof the tube c, as shown in said patent, a construction that ne- 8 5cessitates raising the burner the entire length of the tube before itcan be removed, the base is in the present invention provided with threeor more supportingposts, a, having shouldered seats at their upper endsthat re- 9o ceive the liange e at the base of the chimney and thussupport and center the said flange and burner, which can, however, bedisengaged from its support by merelylifting it far enough to disengagethe lower end of the tube from the opening a2 in the platform c', anamount of movement that can be made without encountering thecone g,which stands over the burner with its apex projecting down into thechimney f, substantially as in the patent re-` ,Ioo

ferred t0. i

The platformc surrounds the burner-tube c above the inletopenings 2, andthus prevents possibility of igniting the gas at the said openings, asmay sometimes occur in the construction shown in the said patentreferred to. By this construction of the burner-support the burner mayberemoved withbut disturbing the cone g, and in order to preventdisplacement of the latter it is permanently secured to or IiXed uponthe frame-work of the stove, being shown in this instance as fastenedupon posts h, that project up from the base a, said posts being shown asmade tubular, and the cone g and arms d of the foot-piece d for theburner being all securely held together and rigidly fixed with relationto the base by bolts passing th rough the said tubular posts 7L.

The base portion of the cone g is provided with a cover or capplate, g',preferably also permanently attached by the bolts, and provided at itsupper face with projections g2, that serve to hold a vessel or cookingutensil above the plate g', so as to be more thoroughly affected by theheat radiating from said plate.

The parts thus far described, and shown in the lower portion of Figs. 2and 3, are complete in themselves and constitue a gas lamp or burnerwhich may be used to heat water or anything that may be required in asuitable vessel or utensil placed upon the plate g. It is desirable,however, and gives a better finish to have the said burner inclosed in acasing, t', which may be of sheet metal supported at its lower end onthe base a, and is provided with a door or opening, i', through whichthe burner may be removed and replaced when required.

It is necessary to admit large quantities of air around the burner, andfor this purpose the casing surrounding the burner has heretoforeusually been made perforated, as shown in said former patent. Thisperforation of sheet metal is a somewhat expensive operation, and bymaking the door t, which is usually a casting, with a large number ofopenings, as shown inpFig. l, and also providing the base c withopenings a5, sufficient air may be admitted without perforating orstamping out the sheet-metal casing Vhen the stove is to be used forheating purposes or warming the air of an apartment, it is preferable tohave the heating-drum a permanent part of the structure, instead of aseparate removable piece, such as must necessarily be used with theconstruction of stove shown in the patent referred to.

The heating-drum comprises an outer shell or case, 7c, surmounted by atop, k,preferably of cast metal, and containing a flue or chimney, m,having a daring base, m', around the top of the burner, into which theflame and heated gases arise. The said flue m is opened at its top andis provided with a skeleton frame or spider, mz, interposed between itsupper end and a cross-piece or bridge, k2, in the top lo', which bridgespans an opening or stove-hole in the top 7a,pr0vided with a removablecover, 7c3. The space between the lower end of the due and the drum 7cis closed by a ring, n, which prevents air or gases from passingdirectly from the burner or stove proper into the drum 7c, andconsequently all such heated air or gases must pass up through the fluem and be discharged into the top of the drum k. It is desirable,however, to deliver the heated air as loW down as possible in the roomto be heated, and for this purpose outlets are provided near thelowerend of the drum k. These outlets may be perforationsin the drum, asshown at o, Fig. 3, or preferably,in order to avoid the necessity ofperforating the sheet metal, the construction shown in Figs. 1 and 2 isadopted. in this latter construction the ring mmade of cast metal,issupported on the drum i, Aand is provided with a flange, n', thatsupports the flue m m', and with a ring, n2, that supports the drum k,and is provided with openings 02, through which the heated air mayescape.

The bridgepiece k2 of the top 7c rests on the frame m2 at the upper endof the iiue m, and the parts z', le, k', m, and n are all held in placeby a bolt, p, secured at its lower end in the plate g and fastened byany suitable clamping device, as p', bearing on the cross-piece k2.

If desired, the ring n might be made integral with the plate g', beingconnected therewith by arms g3, as shown in Figs. 3 and 4.

In the modification shown in Fig. 8, asingle drum, z' k, extends fromthe base a to the top k', and in this construction the ring n, thatscparates the stove-chamber below from the heat` ing-chamber above, isconnected with the plate g by arms g3, as shown in Fig. 4, so as tosupport the uem m', the said drum t' 7c and flue mm being held in placeby the bolt p, as in the con struction previously described.

The operation of the stove is the same in both constructions, the heatedgases passing up through the space between the outer edge of the cone gand the inner edge of the ring n and up through the fine m, as indicatedby the arrows, and then descending through the interior of theheating-drum 7c, and being delivered through the outlet-openings o or02.

If the stove is to be used for cooking purposes, the heating-drum 7c andits inclosed ue m will not be used, and the top plate, g', over thecone, either with or without such an extension as produced by the armsg3 and ring n in Fig. 4, will be properly constructed to re ceive anycooking apparatus that may be required.

The drum need not necessarily be used, as it does not form an essentialpart of the supporting frame-Work of the stove, as is the case in theconstruction shown in Patent No. 285,311, herein before referred to.

While the device g has been spoken of as a cone, it is obvious that itisnot necessarily conical in shape, its function being to spread anddistribute the flame, as described in the patent referred to, and suchdistributing de- IOS IIO

vice y is also found to greatly facilitatev and improve the combustionof the gases, probably owing to the fact that the said gases have a muchlarger surface exposed to the air.

. I claiml. In a gas-stove, the main frame consisting of a base anduprights supported thereon, combined with a ame spreading anddistributing device of y substantially conical shape, having its basetightly held upon said up-. rights with its apex projecting down betweenthem, and a burner consisting of a tube that receives gas and air at itslower end and is provided with a lateral flange near its upper end, anda perforated chimney of larger diameter than said tube supported` onsaid flange, the said burner being held in supports thatl engage thelower end of the burner-tube and the ange thereof, whereby the saidburnertube is removable laterally from between the base and spreadingdevice, substantially as' and for the purpose set forth.

2. The combination of the main frame composed of a base provided withuprights, with a burner composed of a tube that receives air and gasnear its lower end, a lateral flange near the upper end of the saidtube, and a per forated chimney on said iiange, thesaid burner beingheld in a socket near its lower end, and the iiange at the upper end ofthe said tube being seated on uprights supported from the base, and aninverted cone tightly fastened on uprights connected with said base andhaving its apex extend downward into `the said chimney, substantially asdescribed.

3. The main frame composed of a base pro vided with standards oruprights, combined with an inverted cone tightly'fastened upon saiduprights and provided with a plate attached to its base portionfor'supporting cooking utensils, and a burner composed of a tubeprovided with a flange near its upper end, and

a perforated chimney` of larger diameter than Y Witnesses:

Jos. P. LIVERMORE, JAs. J. MALONEY.

as and for the p'ury

